Table extension



G. FROELICH.

TABLE EXTENSION. APPLICATION FILED MAY 2. 1922.

Larga., mallteam. 14,1922.

2 SHEETS-SHEET l.

Il uni-Aun i Inn -l G. FROELICH.

TABLE EXTENSION. /IPPLIcATIoIl FILED MAY 2.1922.

,435,598.' Patented Nov. III, 1922.

2 SHEETS-SHEET Z.

j @www1/ gorga gro/@ Patented Nov. 14, 1922.

Yarerre Middtt LGEQRGEFJPJOELICE, 0F Y TW VRIVERS, Y

' Tseran nxrnnsron.

applicati@ med may 2, 1922. seriai no. 557,930.

To olle/whom tymag/ concern.'

9 Beit knownfthatnl, GnoRen'FRonLroH, acitizen of the United States, and resident ofTwo Riversyin'the county (3f-Manitowoc and State of VVisconvsin,v4 have invented certainnew and useful'mprovements in Table Extensions; andfI'do hereby declare that the lfollowing is a-ull'-,'v clear, and exact descriptionthereof. Y

The invention relates vto extension tables 'ofa type in which the sections come up au-` tomatically on. them'ovement to extended po'- s'ition, the'sections being. subsequently lowered `conveniently for the restoration of partstotheir normal position.

pivotedtooneof said slides, a raising angle secured to the other slide,` and a linkpivoted atits ends to succeeding pairs of cams and carrying a hook ,adapteld'to cooperate with the raising angle for elevating'the sections. The pairs of 'cams "operate in sequence so that the-sections areelevated one after anether as the table-is extended. A

rodfis secured: to the link f by means, of? cable and thetension ofthe cable :by means Y Objects of the -invention are vautomatic action, the leaves. coming upjin sequence as the table is drawn apa-rt, securing theelevated leaves iny suitable position, the obviat- 'ing 'of the inconvenience of tables now` in use, which ynecessitates searching around i fon lost leaves ywhen it is desired to extend `'tation of 4the cams.

the table and the putting away-,of leaves when the tabley is shortened; -`quickness of "operationandgeneral Convenience, the table being extensible without taking off the table spread, dishes, or any other load.

An important lobject'of the invention is the' efficiency/'of the lifting action. The

hooks are brought in contact with the raising angle and elevate the sections bythe ro- In this operation but little Vfriction''is developed' and y but llittle forceV need be exerted;

An .object is" the convenience of *lowering actlon'bythe, more manual movement of the rod. `The cams are all rotated and the seci tionslare brought' down` immediately without the 'development ofi frlction or any tendency7 of the sections to stick or jam.

`With the above and other objects in View, which will appear as l the description pro- "tlie links of the rod causes thecollapse `ofthe sec- 1. .tions so that the table. may" beretnrned to normal position;

members 104,10.

vltin position.v The frame members i 4which.. lt comprises-slides, av plurality of-cams Figure 1 is` aside elevation of an embodiment'of the invention. 1 lFigure 2 is a longitudinal, vertical section thereof taken on the line 2-2 of Fig- 75 .ureg i A. Y

' Figure 3 is a 'bottom plan. Figure et is a side elevation ofthe table in contracted positioln.

`Figurefis an enlarged p detail showing 'the` cooperative relationship ofy the cams, andthe raising angle,yand Figuref is a cross section on the line G-G of'Figure i y The transverse frame members 10-10 85 aresecured to end members 11-112 which into engagement with the` ends of lframe A metallic angle 12 is securedY to frame-'members 10e-10" and by 90 means of screw 13 removably retains legs 10-410 and end vmembers 1111 are rigid with major table top 15 andfminor Jtable top 1,5. Rigidly `secured .to frame member l0 are 95 are curved at the corners and thus brought f metallic male 4slides16-16, spaced slightly below major top 15. Metallic female `slides 17-17` are rigidA with frame' member 10. i As shown in Figure 6, the slides are substantially rectangular `in cross section, but are ycut away at adjacent sides to form longitudinal Hanges. Depending longitudinal flange 18 on the female' slides `17-17 have pivoted thereto a series of cams 19. VOn each side of the table are a pair of these cams adapted to cooperate with eachof sectionsu20, 21, 22,.,and 23, so that there are `fouil cams, to each section. Links 24 have ,their ends pivotally secured to the lower ends of each pair of cams 19.` Rigidwith the inner ends of links 24 are depending hooksV 2 5. VMale slides 16-16 have raising upward tation of the cams the .the raising angle ing therethrough.

` number of the table section, screws 27, one of which is secured to each end of the sections, move upwardly, their heads 2S traveling in chambers 29. ll/Vhen the sections are in elevated position the chambers so that there can be no further movement. The elevated section, or sections, are then retained incapable of tipping by reason of the pair of cams on each end and the screws 27 so that there is no danger of collapse.

f The point of Contact of cams 19, with respect to the table sections, has such a relationship to the pivot-son which the cams move that there is no tendency for the cams to reverse their movement and drop the sections. by the retention of hook 25 by raising angle 26, is limited owing to the fact that the vhook vis gradually elevated as the cams rotate on their pivots. Thus on suficient ro- 26. Further rotation of the cams is preveiitedby stop 35. Figure 5 which resultsl in the elevating of hook 25 above raising angle 26. vTo each of the links 24 an eye 30 is suitably secured which `grips a cable 31 extend- 'lhe length of the cable between the eyes is substantially the distance between the eyes when they have the relationship indicated in Figure 2.

.There is one of these cables 31`foreach side ofthe table `and it extendsrearwardly and is secured to a U-shaped rod 32, the arms ofA which are directed 'through frame member 10', the movement inwardly of the rod being limitedby member 10. The rod isnormally invisible being concealed by end member 11. lhen section 20 reaches the 4elevated position, cables 31 extending to rod 32 are" tensioned so that cams 19 are incapable of further rotation in clockwise direction, looking at Figure 2.

l 1t willbe apparent, therefore, that sec- 'tion 2O is maintained securely in elevated position. '1f it is desired to also have section 21 elevated, the table is moved further,

"bringing the hook 25 in engagement with raising angle 26, rotating the cams 19 and raising the section. After any desired sections has been raised, the ends of the tablemay be moved towards each contact with raising heads are at the ,ends of the' cams. l

The movement of the cams, produced hook is disposed above yof a male slide,.a female slide,

other slightly `to take up any looseness or spacing apart of the sections. elongated to cooperate with the angle to prevent reverse movement of the cams.

1n lowering the sections, rod 32 is moved outwardly, tensioning cables 31 which move rthe links in the direction of the rods and drop all of the elevated sections simultaneously. The ends of the table may then be moved towards each other and the sections are carried to` the positionl shown in "Figure t, moving between maleslides 16--16 and top 15. .On the tensioningof the cables 31, the cams are rotated, as described, until they are brought ini contact` with stops 35, which limit the rotation of. all of the By means'of these stops therefore, the hooks 25 are prevented from moving so far upwardly as not to engage with raising angle 26. when the `table ends are Vagain moved apart for raising the sections.` When the table is extended, top 15 is supported in themiddle of the table by blocks 34 car v'Hook 36 is i ried by female slides 17-17. When the adapted to ride lover the vcams.`

1claim2 y i 1, Inantextension table, the combination of a male slide, a lfemale slide, a plurality of tablesections, apair of` cams pivoted to one of said slideslfor each ofsaid sections, a link having each `.of its ends pivoted` to the lower end of one ofsaid cams, a vrigid member secured tothe other slide, and means on said link cooperating with said rigid member for elevating yone of said sections. 2. In an extension table, the combination of a maleslide, a female slide, a table section, a pair of cams pivoted to one of said slides, a `raising' angle secured to the other slide, a link having its endspivotally secured to the lower ends of saidcams, and a hook on said `link cooperating with said raising angle for 'elevating said table section. Y 3. 1n an extension table, the combination a plurality of table sections, a pair fof camspivoted to one of said slides for each of saidV sections, a link for elevating each of said sections having its vends pivotally secured to thelower ends of a pair of cams, a rigid member on the other slide, means for each table section cooperating with said rigid member and said cams for elevating a table section, and manually operable means for lowering all of said table sectionssimultaneously.` Ll. In an extension table, the combination of a male slide, a female slide,aplurality of cams pivoted" to said female slide, a plurality oftable sections, a link pivotally secured to the lower end of a pair of said cams, a lrigid member onpthe other slide,

link, and a Ushaped rod having an end secured to said cable.

In testimony that I claim the foregoing I. have hereunto set my hand at TWO Rivers,

in the county of Manitowoc and State of Wisconsin.

`GEORGE rRoELioH. 

